This article mainly introduces:

S.Africa hydraulic cylinder,grate cooling hydraulic cylinder manufacturer,grate cooling hydraulic cylinder

(S.Africa grate cooling hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）

grate cooling hydraulic cylinder are widely used in S.Africa，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed grate cooling hydraulic cylinder for customers from S.Africa.

Introduction to grate cooling hydraulic cylinder:

The pressure of the sliding surface of the grate cooling hydraulic cylinder piston is too large, resulting in sintering. The piston tilts due to the weight of the piston rod, resulting in the phenomenon of non-stiffness, or the pressure of the sliding surface of the piston rises due to the action of the transverse load, which will cause sintering. In the design of the grate cooling hydraulic cylinder must study its working conditions, the length of the piston and bushing and the size of the clearance must be fully paid attention to.

When the piston speed of the grate cooling hydraulic cylinder is high, the steel ball of the check valve flows with the oil flow, so that the valve hole is blocked, and the grate cooling hydraulic cylinder moves irregularly. Elimination method: Replace the steel ball with a cone valve or spool with a guide shoulder.

The grate cooling hydraulic cylinder is mainly composed of body, piston, piston rod, grate cooling hydraulic cylinder head, grate cooling hydraulic cylinder bottom, piston rod head and related auxiliary devices. The piston divides the grate cooling hydraulic cylinder into two chambers, and moves reciprocally in the grate cooling hydraulic cylinder with the help of pressure oil. In order to improve its working effect, there is no sealing ring on the piston to eliminate internal leakage, where the piston rod passes through the grate cooling hydraulic cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the grate cooling hydraulic cylinder through the gap, so the sealing device and dust prevention reason are set. At the same time, in order to eliminate the influence of eccentric load on the work of the piston, all the grate cooling hydraulic cylinders must be provided with a considerable length of guide sleeve at the extended end of the piston rod. In addition, in the case of faster piston movement, the phenomenon of mechanical collision between the piston and the grate cooling hydraulic cylinder bottom and the grate cooling hydraulic cylinder head is serious, so the buffer deceleration should be set at both ends of the grate cooling hydraulic cylinder The working medium of the grate cooling hydraulic cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; grate cooling hydraulic cylinder sealing device: The use of Yx sealing ring, polyurethane (PU) and polytetrafluoroethylene (PTFE) materials combined to achieve a good sealing effect; Buffer mechanism of the grate cooling hydraulic cylinder: The buffer structure of the grate cooling hydraulic cylinder is to prevent the piston from colliding with the grate cooling hydraulic cylinder head at the end of the stroke.

In use, the grate cooling hydraulic cylinder should try to avoid the friction iron powder or iron filings formed by buffering the plunger. When the matching gap of the buffer device is small and the transverse load on the piston rod is large, the sintering phenomenon may be caused. These friction iron powder or the metal fragments that have fallen off as a result of sintering will remain in the grate cooling hydraulic cylinder.

Answers to some questions about grate cooling hydraulic cylinder:

Why is there noise in the hydraulic cylinder of the excavator lift arm?
There is no noise of a normal cylinder, check whether the throttle is ringing, or the mechanical part connected with it is ringing, and the mechanical part can be greased. If it can't be ruled out, disconnect the cylinder from the mechanical part and act alone to see what the situation is.

Can one hydraulic pump with two cylinders work?
A hydraulic pump with two cylinders will work. Commonly used hydraulic pump types: 1, according to whether the flow can be adjusted can be divided into: variable pump and quantitative pump. The output flow can be adjusted according to the needs of the variable pump, the flow can not be adjusted called quantitative pump. 2, according to the pump structure commonly used in the hydraulic system is divided into: gear pump, vane pump and plunger pump 3 kinds. Gear pump: small volume, simple structure, the cleanliness of the oil requirements are not strict, the price is cheaper; However, the pump shaft is subjected to unbalanced force, serious wear and leakage. Vane pump: divided into double acting vane pump and single acting vane pump. The pump has uniform flow, smooth operation, low noise, higher pressure and volumetric efficiency than gear pump, and more complex structure than gear pump.